N Nauclerus, genus 105 Nyctale, genus 68, 185 “ Kirtlandii pl. 11, 63, 187 Nyctea, genus 190 O Ortalida, genus 270 “ poliocephala pl. 44, 267 Otus, genus 181 P Pandion, genus 112 Parinæ, sub-family 17 Parus, genus 17 “ septentrionalis pl. 14, 80 Petrochelidon, sub-genus 243 Picolaptes, genus 157 “ brunneicapillus pl. 25, 156 Pipilo, genus 126 “ fusca pl. 17, 124 Plectrophanes, genus 230 “ McCownii pl. 39, 228 Polyborus, genus 112 Progne, genus 245 Psaltria, genus 19 Ptilogonys, genus 171 “ nitens pl. 29, 169 Pyrocephalus, genus 128 “ rubineus pl. 18, 127 Q Querquedula, genus 83 “ cyanoptera pl. 15, 82 R Recurvirostra, genus 233 “ occidentalis pl. 40, 232 Rostrhamus, genus 107